Query: Known G&G UMG issues

Amazing KG3 · March 15th, 2006, 13:58

Anybody know any common problems found in G&G UMG's? Im ordering one, but it says it has some double feeding issues. I've been told that it could be induced by putting the 100%of the rounds in the clip, so the spring is overloaded. However i was just wondering if it has a bad hop up alignment or anything. Ill post in Drs Corner once it arrives.

CDN_Stalker · March 15th, 2006, 14:03

Just going to say one is for sale on ASC right now, might save you some cash. Unless you are buying that one, but you said ordering, so I assume from a retailer.

As far as the question goes, little info is out there right now, but what I've read there are no issues with it to date.

Amazing KG3 · March 15th, 2006, 14:08

Appreciate but i was eyeing it. Im getting mine from Gman. Im so pumped about it. I asked about getting the QD silencer.

Amazing KG3 · March 15th, 2006, 14:10

what i meant to say is that i asked ASC about the QD silencer. Or does anyone know where to get one new?

CDN_Stalker · March 15th, 2006, 14:16

UMP is a sexy beast, even if it looks a bit ugly.

Amazing KG3 · March 15th, 2006, 14:42

The UMP is a god among men.Its like the desert eagle of SMG's, with that crazy .45 caliber round. HK design is practically an art form. Besides-the fact thats its ugly says it loud in clear. "Im only here for business"

CDN_Stalker · March 15th, 2006, 14:43

Ya, and a large amount of composite material in it.

http://www.hkpro.com/ump.htm

Little video in there.

Amazing KG3 · March 15th, 2006, 15:11

that was too short. The pics are nice though. I mainly bought the gun cause of the RIS. Im having trouble finding internal upgrades though.

CDN_Stalker · March 15th, 2006, 15:19

I thought it was a typical mechbox that can use TM and other parts in?

Amazing KG3 · March 15th, 2006, 15:45

not all that sure to be honest

Amazing KG3 · March 15th, 2006, 15:53

YouTube - UMP

more UMP footage

mcguyver · March 15th, 2006, 20:40

There are issues with the G&G UMG. It is due to the tappet being of an inferior design for this gun. If you go to G&G's website, they have a tutorial on the problem and their "redesigned" tappet to solve these issues.

They were giving away free upgrade tappets with the purchase of a hi-cap mag, but that was last fall so I have no idea if they are still doing it.

Your gun sounds a little like one I worked on last fall. It wouldn't feed most of the time and this was form new. It turned out that the sector gear was shimmed so as to miss the tappet on each revolution. The one you're buying may have this issue as well, but the sector gear engages the tappet some, if not most, of the time.

Repeated use like that would lead to a tappet failure and I advise you to get someone to look at it ASAP. Reshimming may be all that is required.

Also, turn your hop-up off and test fire some bb's. Ive seen this be an issue too many times in all kinds of guns. Guys think "OMG, my guns screwed" only to have the hop-up on too much and the bb jams up in the chamber. It's worth a try anyways.

CDN_Stalker · March 15th, 2006, 21:54

Good info.

Amazing KG3 · March 15th, 2006, 22:20

so for someone whose a total n00b at internals, how hard will this be, i know someone who can look at, but is there any thing i need to order? I think im talking about the tappet. do you have a link to that website?

mcguyver · March 15th, 2006, 23:36

Here's a link:

http://b2b.guay2.com/modules.php?op=...article&sid=25

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March 15th, 2006, 13:58	#1
Amazing KG3 Trader rating Join Date: Feb 2006 Location: Calgary, AB	Query: Known G&G UMG issues Anybody know any common problems found in G&G UMG's? Im ordering one, but it says it has some double feeding issues. I've been told that it could be induced by putting the 100%of the rounds in the clip, so the spring is overloaded. However i was just wondering if it has a bad hop up alignment or anything. Ill post in Drs Corner once it arrives.

March 15th, 2006, 14:03	#2
CDN_Stalker Official ASC Bladesmith Trader rating Join Date: Jul 2003 Location: Ottawa, Ont.	Just going to say one is for sale on ASC right now, might save you some cash. Unless you are buying that one, but you said ordering, so I assume from a retailer. As far as the question goes, little info is out there right now, but what I've read there are no issues with it to date. __________________ STKR Knives http://www.facebook.com/#!/pages/STK...17036668380871

March 15th, 2006, 14:16	#5
CDN_Stalker Official ASC Bladesmith Trader rating Join Date: Jul 2003 Location: Ottawa, Ont.	UMP is a sexy beast, even if it looks a bit ugly. __________________ STKR Knives http://www.facebook.com/#!/pages/STK...17036668380871

March 15th, 2006, 14:08	#3
Amazing KG3 Trader rating Join Date: Feb 2006 Location: Calgary, AB	Appreciate but i was eyeing it. Im getting mine from Gman. Im so pumped about it. I asked about getting the QD silencer.

March 15th, 2006, 14:10	#4
Amazing KG3 Trader rating Join Date: Feb 2006 Location: Calgary, AB	what i meant to say is that i asked ASC about the QD silencer. Or does anyone know where to get one new?

March 15th, 2006, 14:42	#6
Amazing KG3 Trader rating Join Date: Feb 2006 Location: Calgary, AB	The UMP is a god among men.Its like the desert eagle of SMG's, with that crazy .45 caliber round. HK design is practically an art form. Besides-the fact thats its ugly says it loud in clear. "Im only here for business"

March 15th, 2006, 14:43	#7
CDN_Stalker Official ASC Bladesmith Trader rating Join Date: Jul 2003 Location: Ottawa, Ont.	Ya, and a large amount of composite material in it. http://www.hkpro.com/ump.htm Little video in there. __________________ STKR Knives http://www.facebook.com/#!/pages/STK...17036668380871

March 15th, 2006, 15:11	#8
Amazing KG3 Trader rating Join Date: Feb 2006 Location: Calgary, AB	that was too short. The pics are nice though. I mainly bought the gun cause of the RIS. Im having trouble finding internal upgrades though.

March 15th, 2006, 15:19	#9
CDN_Stalker Official ASC Bladesmith Trader rating Join Date: Jul 2003 Location: Ottawa, Ont.	I thought it was a typical mechbox that can use TM and other parts in? __________________ STKR Knives http://www.facebook.com/#!/pages/STK...17036668380871

March 15th, 2006, 15:45	#10
Amazing KG3 Trader rating Join Date: Feb 2006 Location: Calgary, AB	not all that sure to be honest

March 15th, 2006, 15:53	#11
Amazing KG3 Trader rating Join Date: Feb 2006 Location: Calgary, AB	YouTube - UMP more UMP footage

March 15th, 2006, 20:40	#12
mcguyver Trader rating Join Date: Aug 2005 Location: Northern Alberta	There are issues with the G&G UMG. It is due to the tappet being of an inferior design for this gun. If you go to G&G's website, they have a tutorial on the problem and their "redesigned" tappet to solve these issues. They were giving away free upgrade tappets with the purchase of a hi-cap mag, but that was last fall so I have no idea if they are still doing it. Your gun sounds a little like one I worked on last fall. It wouldn't feed most of the time and this was form new. It turned out that the sector gear was shimmed so as to miss the tappet on each revolution. The one you're buying may have this issue as well, but the sector gear engages the tappet some, if not most, of the time. Repeated use like that would lead to a tappet failure and I advise you to get someone to look at it ASAP. Reshimming may be all that is required. Also, turn your hop-up off and test fire some bb's. Ive seen this be an issue too many times in all kinds of guns. Guys think "OMG, my guns screwed" only to have the hop-up on too much and the bb jams up in the chamber. It's worth a try anyways. __________________ Age verifier Northern Alberta Democracy is two wolves and a sheep discussing what's for dinner. Freedom is the wolves limping away while the sheep reloads. Never confuse freedom with democracy.

March 15th, 2006, 21:54	#13
CDN_Stalker Official ASC Bladesmith Trader rating Join Date: Jul 2003 Location: Ottawa, Ont.	Good info. __________________ STKR Knives http://www.facebook.com/#!/pages/STK...17036668380871

March 15th, 2006, 22:20	#14
Amazing KG3 Trader rating Join Date: Feb 2006 Location: Calgary, AB	so for someone whose a total n00b at internals, how hard will this be, i know someone who can look at, but is there any thing i need to order? I think im talking about the tappet. do you have a link to that website?

March 15th, 2006, 23:36	#15
mcguyver Trader rating Join Date: Aug 2005 Location: Northern Alberta	Here's a link: http://b2b.guay2.com/modules.php?op=...article&sid=25 __________________ Age verifier Northern Alberta Democracy is two wolves and a sheep discussing what's for dinner. Freedom is the wolves limping away while the sheep reloads. Never confuse freedom with democracy.

Query: Known G&G UMG issues

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